85171270 has 8 divisors (see below), whose sum is σ = 153308304. Its totient is φ = 34068504.

The previous prime is 85171267. The next prime is 85171301. The reversal of 85171270 is 7217158.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4258554 + ... + 4258573.

It is an arithmetic number, because the mean of its divisors is an integer number (19163538).

Almost surely, 2^85171270 is an apocalyptic number.

85171270 is a deficient number, since it is larger than the sum of its proper divisors (68137034).

85171270 is a wasteful number, since it uses less digits than its factorization.

85171270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8517134.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 85171270 is about 9228.8282029735. The cubic root of 85171270 is about 439.9780808640.

The spelling of 85171270 in words is "eighty-five million, one hundred seventy-one thousand, two hundred seventy".